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发明名称
METHOD FOR FORMATION OF SHAPED SLOT
摘要
申请公布号
RU1796023(C)
申请公布日期
1993.02.15
申请号
SU19904897971
申请日期
1990.12.29
申请人
VULFERT VIKTOR R,SU;ZAVARZIN VASILIJ G,SU;KOZYREV VYACHESLAV G,SU
发明人
VULFERT VIKTOR R,SU;ZAVARZIN VASILIJ G,SU;KOZYREV VYACHESLAV G,SU
分类号
E21C37/00
主分类号
E21C37/00
代理机构
代理人
主权项
地址
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